Before climbing a ladder, firefighters should ensure that it is:

Ensuring that a ladder is secured before climbing is essential for firefighter safety. A secured ladder is less likely to shift or slip while in use, which could lead to falls or accidents. This involves ensuring that the base of the ladder is firmly placed, the ladder is properly angled, and, if applicable, that any stabilizing devices are engaged. A secured ladder provides stability and support, allowing firefighters to focus on their critical tasks rather than worrying about the risk of instability during their operations.

While aspects such as being lightweight, dry, or new might contribute to overall ladder effectiveness, they do not specifically address the immediate safety concerns inherent in ladder use. Thus, securing the ladder stands out as the most crucial step before climbing.